1756-CFM ROCKWELL AUTOMATION

Suitable for safety functions	No
Digital inputs configurable	Yes
Digital outputs configurable	No
Voltage type of supply voltage	DC
Type of electric connection	Screw connection
Total backplane power	1.7 W
Thermal dissipation	20.4 BTU/h
Current draw	300 mA @ 5.1V, 16 mA @ 24V
Module keying	Electronic, software configurable
Outputs	2 current sourcing
Power dissipation, max	6 W @ 60 °C (140 °F)
Inputs	Two flowmeters (F) inputs used for all modes, Two gate inputs used in Totalizer mode for prover/store count, 4 (2 per channel)
Isolation voltage	250V (continuous), reinforced insulation type, I/O-to-backplane, 250V (continuous), basic insulation type, I/O group-to-group
Wire category	2 on signal ports, 1 on power ports
Redundancy	No
Short-circuit protection, outputs available	No
High resolution, max	100 kHz
Frequency	Resolution: 0.0005 Hz
Slot width	1
RTB keying	User-defined mechanical
Shock	Operating: 30 G, Non operating: 50 G
Vibration	2 G @ 10...500 Hz
Surrounding air temperature, max	60 °C
North American temperature code	T4
Emissions	IEC 61000-6-4
ESD immunity	6 kV contact discharges, 8 kV air discharges
Relative humidity	5...95% noncondensing
Conducted RF immunity	10V rms with 1 kHz sine wave 80% AM from 150 kHz...80 MHz on shielded signal ports
EFT/B immunity	±4 kV at 5 kHz on unshielded output and power ports, ±4 kV at 5 kHz on shielded input ports
Operating temperature	0 to 60 °C
Surge transient immunity	±1 kV line-line (DM) and ±2 kV line-earth (CM) on unshielded output and power ports, ±2 kV line-earth (CM) on shielded input ports
Radiated RF immunity	10 V/m with 1 kHz sine-wave 80% AM from 80...2000 MHz, 10 V/m with 200 Hz 50% Pulse 100% AM @ 900 MHz, 10 V/m with 200 Hz 50% Pulse 100% AM @ 1890 MHz, 3 V/m with 1 kHz sine-wave 80% AM from 2000...2700 MHz
Nonoperating temperature	-40 °C
On-state voltage drop, max	0.6 Ã© x current
Off-state leakage current, max	<300 µA @ 31.2V DC
Reverse polarity protection	Outputs only
Output switching time	<50 Ã¼s turn on, <300 Ã¼s turn off, Outputs triggered by Total, all other Ã¢turn-onÃ¢ and Ã¢turn-offÃ¢ times <1 ms
Output control	Any number of outputs is assignable to any of two flowmeter channels each output can have 2 Ã¢turn-onÃ¢ and Ã¢turn-offÃ¢ preset values
Output type	IEC 1 A 24V DC
Output voltage source	Customer supplied
Overload current	Electronic (<4 A)
Surge current	2 A @ 50 ms, repeatable every 2s
Output current per point	1 @ 10...31.2V DC, 20 mA @ 4.5...5.5V DC
Output reverse polarity protection	Yes (if wired incorrectly, module outputs can be permanently disabled.)
Output short circuit protection	Electronic (no indication of fault. remove overload and toggle output on/off to restore.)
Output voltage range, nom	5V operation: 4.5...5.5V DC for 3...20 mA load per point, 12/24V operation: 10...31.2V DC for 40 mA...1 A load per point
Input frequency, max	100 kHz @ flowmeter inputs (overrange occurs at 100 kHz)
Gate input on-state current, min	4 mA
Gate input on-state current, nom	15 mA
Input sampling period	User selectable
Count range, max	2, 147, 483, 647
Flowmeter input impedance	5 kÃ© ±30% resistive
Mechanical filter debouncing (Z0 & Z1 Inputs)	Software selectable
Gate input voltage range	5V operation: 4.5...5.5V DC, 12/24V operation: 10...26.4V DC
Filtering (inputs F0 & F1)	Firmware selectable: high-speed 100 kHz or low-pass filter for frequencies <70 Hz
Flowmeter input voltage	±30V, selectable input thresholds of 50 mV, 1.3V and 4V: ±30V peak unterminated open circuit voltage, magnetic pickup, TTL compatible, input voltage >1.3V DC is Logic 1 and -0.7...1.3V DC is Logic 0, 12...24V DC powered preamp output, 4V DC threshold
Totalizer fill and prover	Yes
Enclosure type	None (open-style)